Second Grade Math Mastery Flashcard

Front

What is the process to determine the time after adding hours and minutes to a given time?

Back

To determine the new time, add the hours to the current hour and then add the minutes. If the minutes exceed 60, convert the excess into hours and add it to the total hours.

Tags

CCSS.3.MD.A.1

Front

How do you round a number to the nearest ten?

Back

To round a number to the nearest ten, look at the digit in the ones place. If it is 5 or greater, round up; if it is less than 5, round down.

Tags

CCSS.3.NBT.A.1

CCSS.4.NBT.A.3

Front

What does the short hand on a clock represent?

Back

The short hand on a clock represents the hour.

Tags

CCSS.1.MD.B.3

Front

What does the long hand on a clock represent?

Back

The long hand on a clock represents the minutes.

Tags

CCSS.4.MD.A.1

Front

If you have a certain number of items and some are taken away, how do you find out how many are left?

Back

To find out how many items are left, subtract the number of items taken away from the original number of items.

Tags

CCSS.2.OA.A.1

Front

What is the value of 65 rounded to the nearest ten?

Back

65 rounded to the nearest ten is 70.

Tags

CCSS.3.NBT.A.1

CCSS.4.NBT.A.3

Front

What is the value of 24 rounded to the nearest ten?

Back

24 rounded to the nearest ten is 20.

Tags

CCSS.3.NBT.A.1

CCSS.4.NBT.A.3

Front

How do you tell time when the hour hand is on a specific number and the minute hand is on 12?

Back

When the hour hand is on a specific number and the minute hand is on 12, the time is exactly that hour.

Tags

CCSS.1.MD.B.3

Front

What is the importance of understanding time in daily life?

Back

Understanding time helps in scheduling activities, managing time effectively, and being punctual.

Front

What is subtraction in mathematical terms?

Back

Subtraction is the operation of finding the difference between two numbers.

Tags

CCSS.7.NS.A.3